##########################################################################
#
#  Copyright (c) 2018, Image Engine Design Inc. All rights reserved.
#
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions are
#  met:
#
#      * Redistributions of source code must retain the above
#        copyright notice, this list of conditions and the following
#        disclaimer.
#
#      * Redistributions in binary form must reproduce the above
#        copyright notice, this list of conditions and the following
#        disclaimer in the documentation and/or other materials provided with
#        the distribution.
#
#      * Neither the name of John Haddon nor the names of
#        any other contributors to this software may be used to endorse or
#        promote products derived from this software without specific prior
#        written permission.
#
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
#  IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
#  THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
#  PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
#  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
#  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
#  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
#  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
#  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
#  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
##########################################################################

import IECore

import Gaffer

import GafferDispatch

##########################################################################
# Setup the UI
##########################################################################

if application["gui"].getTypedValue() :

	import GafferUI
	import GafferDispatchUI

	for module in (
		"GafferSceneUI",
		"GafferImageUI",
		"GafferArnoldUI",
		"GafferDelightUI",
	) :
		with IECore.IgnoredExceptions( ImportError ) :
			__import__( module )

	with IECore.IgnoredExceptions( ImportError ) :
		# Avoid registering the TractorDispatcher if the Tractor
		# API isn't available.
		import tractor.api.author
		import GafferTractorUI

	menu = GafferDispatchUI.DispatchDialogue.menuDefinition()
	menu.append( "/Edit/Undo", {
		"command" : lambda menu : menu.ancestor( GafferDispatchUI.DispatchDialogue ).scriptNode().undo(),
		"shortCut" : "Ctrl+Z",
		"active" : lambda menu : menu.ancestor( GafferDispatchUI.DispatchDialogue ).scriptNode().undoAvailable(),
	} )
	menu.append( "/Edit/Redo", {
		"command" : lambda menu : menu.ancestor( GafferDispatchUI.DispatchDialogue ).scriptNode().redo(),
		"shortCut" : "Shift+Ctrl+Z",
		"active" : lambda menu : menu.ancestor( GafferDispatchUI.DispatchDialogue ).scriptNode().redoAvailable(),
	} )
